Maritime turbulence effect on the axis light intensity of a Bessel higher-order cosh-Gaussian laser beam

In this study, the axial propagation properties of the Bessel higher-cosh-Gaussian (BHChG) beam in maritime atmospheric turbulence are reported. Based on the extended Huygens-Fresnel principal, we extracted the analytical expression of the BHChG beam spreading in the considered medium. Additionally, under suitable conditions various particular cases of the axial intensity of the BHChG beam have been derived from the derived result. The numerical results show that when the on-axis intensity of the BHChG beam reaches a particular limit value at a certain propagation distance zmax, the beam loses its dark central spot and returns to its original hollow shape. For small constant strength turbulence, low value of the initial beam waist size, large Bessel order, small value the parameter associated with the cosh function and weak parameter. The study also highlights specific cases of the considered beam, providing valuable insights for information coding and transmission applications. The outputs of this study have potential applications in laser designators, optical communication systems and remote sensing.